FIRM"VICTOR-NORTH" LTD
The specification of chemical reagents
1.Potassium hydrogen carbonate (potassium bicarbonate) KHCO2, Chemically pure
| Assay (T) >99.8% | Al < 0.0005% |
| Substances nonsoluble in water < 0.002% | Ca+Mg < 0.005% |
| Total nitrogen (N) < 0.0005% | Fe < 0.00001% |
| Silicate (as SiO2) <0.001% | Na < 0.02% |
| Sulfate (SO4) < 0.002% | Pb < 0.0005% |
| Phosphate (PO4) <0.0005% | |
| Chloride (Cl) < 0.001% |
2.Potassium carbonate anhydrous K2CO2 , Apart pure for a fiber optics
| Assay (T) >99.0% | Al < 0.001% | Ni < 0.000005% |
| Loss on drying (6000C) < 0.8% | Ca+Mg < 0.003% | V < 0.000004% |
| Substances nonsoluble in water < 0.005% | Co < 0.000002% | Pb < 0.0005% |
| Total nitrogen (N) < 0.001% | Cr < 0.000005% | As < 0.00004% |
| Silicate (as SiO2) <0.004% | Cu < 0.000005% | |
| Sulfate (SO4) < 0.003% | Fe < 0.00002% | |
| Phosphate (PO4) <0.001% | Na < 0.5% | |
| Chloride (Cl) < 0.001% | Mn < 0.000005% |
3.Potassium carbonate anhydrous K2CO2 , Chemically pure
| Assay (T) >99.0% | Chloride (Cl) < 0.001% |
| Loss on drying (6000C) < 0.8% | Al < 0.001% |
| Substances nonsoluble in water < 0.005% | Ca+Mg < 0.003% |
| Total nitrogen (N) < 0.001% | Fe < 0.0005% |
| Silicate (as SiO2) <0.004% | Na < 0.5% |
| Sulfate (SO4) < 0.003% | Pb < 0.0005% |
| Phosphate (PO4) <0.001% | As < 0.00004% |
4.Potassium nitrate KNO3, Pure
| Assay (K2O) > 45.6% |
| Substances nonsoluble in water < 0.03% |
| Fe < 0.003% |
| Chloride (NaCl) < 0.03% |
5. Sodium hydrogen carbonate (sodium bicarbonate) NaHCO2 , Chemically pure
| Assay (T) >99.6% | Chloride (Cl) < 0.001% |
| Substances nonsoluble in water < 0.005% | Al < 0.001% |
| Total nitrogen (N) < 0.0005% | Ca+Mg < 0.005% |
| Silicate (as SiO2) <0.002% | Fe < 0.0005% |
| Sulfate (SO4) < 0.003% | K < 0.002% |
| Phosphate (PO4) <0.0005% | Pb < 0.0005% |
6.Sodium carbonate anhydrous (Soda ash.) Na2CO2, Apart pure for a fiber optics
| Assay (T) >99.8% | Al < 0.0003% | Pb < 0.00001% |
| Substances nonsoluble in water < 0.004% | Ca+Mg < 0.005% | As < 0.00002% |
| Loss on drying (6000C) < 0.25% | Co < 0.00001% | |
| Total nitrogen (N) < 0.001% | Cr < 0.00005% | |
| Silicate (as SiO2) <0.003% | Cu < 0.00005% | |
| Sulfate (SO4) < 0.001% | Fe < 0.0003% | |
| Phosphate (PO4) <0.0005% | K < 0.005% | |
| Chloride (Cl) < 0.001% | Ni < 0.00005% |
7.Sodium carbonate anhydrous (Soda ash.) Na2CO2, Chemically pure
| Assay (T) >99.8% | Al < 0.0003% |
| Substances nonsoluble in water < 0.004% | Ca+Mg < 0.005% |
| Loss on drying (6000C) < 0.25% | K < 0.005% |
| Total nitrogen (N) < 0.001% | Fe < 0.0003% |
| Silicate (as SiO2) <0.003 | Pb < 0.0005% |
| Sulfate (SO4) < 0.002% | As < 0.00002% |
| Phosphate (PO4) <0.001% | |
| Chloride (Cl) < 0.001% |
8.Sodium acetateTrihydrate CH3COONa.3H2O, Pure for the analysis
| Assay (T) >99.5% | Fe < 0.0002% |
| Substances nonsoluble in water < 0.002% | Ca < 0.0015% |
| CH3COOH < 0.02% | Mg < 0.00025% |
| NaOH < 0.01% | As < 0.00005% |
| Sulfate (SO4) < 0.001% | Pb < 0.0005% |
| Phosphate (PO4) < 0.0002% | |
| Chloride (Cl) < 0.001% | |
| Al < 0.0005% |
| Assay (T) >99.8% | хлоратов+перхлоратов (CI) < 0.006% |
| Loss on drying < 1.0% | Ammonium (NH4) < 0.005 |
| Substances nonsoluble in water < 0.006% | Fe < 0.0005% |
| Total nitrogen (NO2) < 0.001% | Ca < 0.005% |
| Sulfate (SO4) < 0.01% | Mg < 0.002% |
| Phosphate (PO4) <0.001% | Pb < 0.0005% |
| Chloride (Cl) < 0.005% |